-30.83% is the change from 613 to 424
Calculation steps:
[( 424 - 613 ) ÷ 613] x 100 = -30.83%
Formula
Percentage change = [(424 - 613) / 613] x 100
Subtract the new number by the original number
424 - 613 = -189
-189 ÷ 613 = -0.3083197389885807
-0.3083197389885807 x 100 = -30.83%